:root {
  --primary: #8A2BE2;
  --primary-light: #9b4ded;
  --bg: #121212;
  --card-bg: #1e1e1e;
  --text: #f1f1f1;
  --muted: #888;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 1rem;
}

/* Card */
.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

/* Welcome Header */
.welcome {
  margin-bottom: 1.5rem;
}

.welcome h1 {
  font-size: 2rem;
  color: var(--primary);
}

.welcome p {
  font-size: 0.95rem;
  color: var(--muted);
}

.welcome span {
  color: var(--primary-light);
  font-weight: bold;
}

.card h2 {
  margin-bottom: 1.2rem;
  color: var(--primary);
}

/* Inputs */
.input-group {
  margin-bottom: 1rem;
  text-align: left;
}

.input-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.input-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid #333;
  background: #2a2a2a;
  color: var(--text);
  outline: none;
  font-size: 1rem;
  transition: border 0.2s;
}

.input-group input:focus {
  border: 1px solid var(--primary);
}

/* Button */
.btn {
  display: block;
  width: 100%;
  padding: 0.8rem;
  background: var(--primary);
  color: white;
  font-size: 1rem;
  font-weight: bold;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.3s ease;
}

.btn:hover {
  background: var(--primary-light);
}

/* Footer */
.footer {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer a {
  color: var(--primary);
  text-decoration: none;
}

.footer a:hover {
  color: var(--primary-light);
}

@media (max-width: 480px) {
  .card {
    padding: 1.5rem;
  }
}